Hi! Sorry it's taken so long for me to respond to you.
When it comes to Ferocity, the monster needs to pass a ferocity roll to land it's attack but the player can get out of the way with a Survival roll if the GM allows it.
For horror, it's the PLAYER that rolls against the monster's horror stat, and they have to roll above it.
That's how I run it anyway, but you're welcome to re-interpret the rules as you see fit!